This Project provides an alternative mechanism for a bicycle. The difference is in terms of the structure advantage of this bicycle over the conventional one is, this is a very flexible model compared to the conventional one. The conventional bicycle is meant for riding on flat roads, not on roads with lots of ups and downs. So this model aims at providing it with a lot of flexibility and an appropriate control for that. The bicycle's structure can be changed, while riding, just by pressing a gear to one that is appropriate to the riding conditions. So the ride becomes much easier and more energy efficient.